Paper · 2023 · International Journal of Plant & Soil Science

Using Paclobutrazol and Leaf-to-fruit-ratio as Tools for Improving Yield and Quality of Non-dwarfing High-density Peach Orchards

Shashi K. Sharma; Sukjai Dhar

7
claims
17
verbatim quotes
2
citations
2
research areas
✓
Open access

Abstract

Excessive fruit set and foliar shading are the major deterrents to the economic productivity of peach orchards raised on vigorous rootstocks. With the objective of obtaining an appropriate level of crop together with the best quality fruit from the high-density peach orchards, studies were conducted in the sub-Himalayan subtropics of Himachal Pradesh, India. In the Experimental orchard of the Department of Fruit Science, the premium Early Grande cultivar raised on non-dwarfing wild peach seedling rootstock was selected for the studies. The orchard soil was sandy loam soil with normal physico-chemical characteristics. The experiment was laid out in RBD factorial experimental design with paclobutrazol (PBZ) and leaf-to-fruit ratio (LFR) treatment factors; three levels of PBZ viz. P1-1500 ppm, P2-2500 ppm, P3-0 ppm and four levels of LFR i.e. L1-30:1, L2-40:1, L3-50:1 and L4 - normal leaf number were tried. The findings revealed that 2500 ppm PBZ together with 40:1 LFR treatment not only reduced the number of days from full bloom to maturity but also improved fruit thinning. The fruit retention was recorded better with 1500 ppm PBZ and 50:1 LFR; however, the yield was recorded highest with 2500 ppm PBZ and 40:1 LFR treatments. This treatment combination also resulted in better overall fruit quality in terms of fruit surface colour, total soluble solids, firmness, acidity, sugars etc. The control over vegetative growth was also observed better under this treatment combination.

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Claims 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

2500 ppm PBZ and 40:1 LFR shortened time from bloom to maturity.

Treatment
2500 ppm PBZ together with 40:1 LFRe0
Outcome
number of days from full bloom to maturitye0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“2500 ppm PBZ together with 40:1 LFR treatment not only reduced the number of days from full bloom to maturity”

✓ located verbatim in the source · abstract, characters 945–1054 · show in text ↑
t0

“Peach”

✓ located verbatim in the source · title, characters 114–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

2500 ppm PBZ and 40:1 LFR improved peach fruit thinning.

Treatment
2500 ppm PBZ together with 40:1 LFRe0
Outcome
fruit thinninge0
Direction
improvede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“2500 ppm PBZ together with 40:1 LFR treatment not only reduced the number of days from full bloom to maturity but also improved fruit thinning”

✓ located verbatim in the source · abstract, characters 945–1087 · show in text ↑
t0

“Peach”

✓ located verbatim in the source · title, characters 114–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

1500 ppm PBZ and 50:1 LFR gave better fruit retention.

Treatment
1500 ppm PBZ and 50:1 LFRe0
Outcome
fruit retentione0
Direction
bettere0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“fruit retention was recorded better with 1500 ppm PBZ and 50:1 LFR”

✓ located verbatim in the source · abstract, characters 1093–1159 · show in text ↑
t0

“Peach”

✓ located verbatim in the source · title, characters 114–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

2500 ppm PBZ and 40:1 LFR gave the highest yield.

Treatment
2500 ppm PBZ and 40:1 LFRe0
Outcome
yielde0
Direction
higheste0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“yield was recorded highest with 2500 ppm PBZ and 40:1 LFR treatments”

✓ located verbatim in the source · abstract, characters 1174–1242 · show in text ↑
t0

“Peach”

✓ located verbatim in the source · title, characters 114–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The same combination improved peach fruit colour, soluble solids, and firmness.

Treatment
2500 ppm PBZ and 40:1 LFRe1
Outcome
fruit surface colour, total soluble solids, firmnesse0
Direction
bettere0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“This treatment combination also resulted in better overall fruit quality in terms of fruit surface colour, total soluble solids, firmness, acidity, sugars etc.”

✓ located verbatim in the source · abstract, characters 1244–1403 · show in text ↑
e1

“2500 ppm PBZ and 40:1 LFR treatments”

✓ located verbatim in the source · abstract, characters 1206–1242 · show in text ↑
t0

“Peach”

✓ located verbatim in the source · title, characters 114–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The same combination improved peach acidity and sugars.

Treatment
2500 ppm PBZ and 40:1 LFRe1
Outcome
acidity, sugarse0
Direction
bettere0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“better overall fruit quality in terms of fruit surface colour, total soluble solids, firmness, acidity, sugars etc.”

✓ located verbatim in the source · abstract, characters 1288–1403 · show in text ↑
e1

“2500 ppm PBZ and 40:1 LFR treatments”

✓ located verbatim in the source · abstract, characters 1206–1242 · show in text ↑
t0

“Peach”

✓ located verbatim in the source · title, characters 114–119 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The same combination better controlled vegetative growth.

Treatment
2500 ppm PBZ and 40:1 LFRe1
Outcome
control over vegetative growthe0
Direction
bettere0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Prunus persica
Prunus persica · TaxonAllagash Brewing · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“The control over vegetative growth was also observed better under this treatment combination”

✓ located verbatim in the source · abstract, characters 1404–1496 · show in text ↑
e1

“2500 ppm PBZ and 40:1 LFR treatments”

✓ located verbatim in the source · abstract, characters 1206–1242 · show in text ↑
t0

“Peach”

✓ located verbatim in the source · title, characters 114–119 · show in text ↑

paclobutrazol · yield · Prunus persica (peach)Positive and negative results

10 papers: 9 positive, 1 negative or no effect

8 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive

6 papers more in this group

See all 10 papers →

paclobutrazol · quality: sugar starch · Prunus persica (peach)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

paclobutrazol · phenology · Prunus persica (peach)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.